band new to mac need a little help

ive had a mac for two days.
i only have two real issues
one is that shortcut keys wont work
i noticed when i customized command+S stopped launching my Safari browser like i set it up to
i tried reassigning the default setting and reassigning the keys but nothing will work
i tried different short cut keys and still nothing
one thing ive noticed is it will have finder in the top bar and the edit button might highlight real quick.
Help? i am very new to mac but ive used them and i am fairlly good at figuring out how to get computers to do what i want.
i dont know. and excuse my poor grammar, ha.

Command-s is the shortcut for Save a file in almost every program. Try using different keys for shortcuts. If you must use S try using command-option-s or something like that.

well it was working fine before
none the less i just did command+option+control+Y
still nothing
i had command+shift+s for sleep mode that wont work either

yeah any shortcuts i set up do not work at all i cant figure it out its super frustrating, im about to just call apple support

bump...this is really frustrating can someone please help.
its not something that should be so hard to figure out.
thats why its so frustrating i cant figure it out.

My left "mouse" wont work, can you tell me what to do if I want to copy and paste with the "letters"? For example cntrl+s or anything like that?

Sorry that my english sucks..

Copy is Command + C
Paste is Command + V

Prosdo said:

Copy is Command + C
Paste is Command + V

Click to expand...

Thankyouthankyouthankyou